Berlin 2014 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 14: Poster: Precision spectroscopy of atoms and ions (with Q)

A 14.7: Poster

Montag, 17. März 2014, 16:30–18:30, Spree-Palais

Parity violation effects in the Josephson junction of a p-wave superconductor — •Nikolay A. Belov and Zoltan Harman — Max Planck Institute for Nuclear Physics, Heidelberg, Germany

The electroweak theory describes nuclear beta-decay and weak effects in particle physics. One of the most characteristic properties of the electroweak interaction is spatial parity violation (PV). PV was experimentally observed in β decay, however, PV terms of the electroweak interaction also affect the interaction of electrons with the nuclei of the crystal lattice in solid state. Possible solid state systems where one may detect PV are superconductors. The main advantage of the investigation of PV effects with superconductors is the compact size and relatively low price of the experimental apparatus as compared to high-energy experiments. While the electroweak contribution is negligibly low in conventional s-wave superconductors, we show that the effect is significantly increased in unconventional p-wave ferromagnetic superconductors. We predict values several orders of magnitude higher than for the s-wave case, forecasting that the PV effect may be observed in superconductors in future.